A while ago I wrote a module for SeeYou that was the OZGAP scoring
system. We and others used it for years to score their competitions. We haven't
used it for a while now because GAP 2002 was preferred and FS worked well.

http://www.fai.org/civl-news/42855-2017-plenary-whats-up-with-software

The main discussion point was around how to ensure organizers have
access to update scoring software. The Bureau has started negotiations with
Naviter, where the goal is for Naviter to produce a GAP scoring module for the
Naviter software SeeYou, as a replacement for FS as mandatory scoring software
in Cat 1 events. Naviter already provides the scoring version of SeeYou for free
for organizers (but without the GAP formula), as well as the related
infrastructure and API’s in form of Soaringspot.

If Naviter can implement the GAP scoring in such a way that it is close enough
to the scores produced by FS today, CIVL would propose to change the scoring
software rule in S7 from FS to SeeYou at the plenary in 2018, with the rule
effective from May 2018. A software Working Group should be appointed: it would
be involved in the definition of our requests and in the follow-up of their
implementation.

The last discussion was about changing the distance formula from FAI sphere to
WGS84, which is required by the FAI general section. This cannot be done on a
general basis today for hang-gliding, as the majority of the pilots in the next
Cat 1 event will still be stuck with older FAI sphere only instruments (Flytec
6030's), while it is viable for paragliding where the access to newer
instruments makes this less of a problem. The timeframe for changing to
SeeYou/GAP scoring from May 2018 would include the change to WGS84, and as such
it should be a natural point to introduce this change for both hang gliding and
paragliding in the rules regarding distance calculations. If possible, we could
implement WGS84 as an option in FS in addition the FAI Sphere from now on, and
this option could be used where appropriate in PG competitions with large
turnpoints.